Vehicle lamp



Nov. 2 1926.

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Nov. 2, 1926. I 1,605,492

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Patented Nov. 2, 1926.

UNITED S'I'AES ROBERT K. WINNING, O F MILWAUKEE, WISCONSIN, ASSIGNOR TOGLUM TUBING COMPANY, OF MILWAUKEE, WISCONSIN.

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MANUFAC- VEI-IICLE LAMP.

Application filed February This invention relates to improvements invehicle lamps. More particularly, this invention relates to improvementsin a novel type of lamp which is especially adapted to be mounted uponthe cowl of a motor vehicle, but which may be found useful for variousother purposes. 7

Broadly speaking, it is the primary object of this invention to providea novel and simple construction such as is adapted to facilitatemanufacturing processes and to result in a cheap, sturdy lamp which willbe satisfactorily and readily operative for whatever purposes it may beintended. More specifically stated, it is my object to produce a lampconstruction in which the several parts will not only be adapted forcheap manufacture but will also co-operate with each other in theassembled product in such a manner as to retain each other in place in asimple and effective manner.

In the drawings:

Figure 1 is a side elevation of a lamp embodying this invention,portions thereof being broken away to an axial vertical section.

Figure 2 is a front elevation of said lamp with portions broken away toa central transverse verticalsection.

Figure 3 is a plan view of the lamp with a part of its casing cut awayto expose the bulb socket and adjacent parts in plan.

Figure 4 is a plan view of the blank from which thelamp standard isconstructed.

, Figure 5 is a detail View in front elevation of a portion of the lamp,showing the glass retaining ring retained in place and showing the bulbin place within its socket.

Like parts are identified by the same reference characters throughoutthe several views.

The body 1 of the lamp comprises a por tion 2 of generally cylindricalform, a concave back portion 3 formed to serve as a re flector, and amarginal flange or bezel 1 in which the glass 5, comprising the face ofthe lamp, is adapted to be received. The body 1 may be formedconveniently by a stamping or drawing operation, and after its generalshape is determined, along the lines indicated above, I preferably formtherein by pressure a substantially horizontal flat bot tom indicated at6.

In the. preferred embodiment of this invention the fiat bottom abovereferred to is made by pressing downwardly as at 7 the 11, 1924. SerialNo. 692,014.

metal adjacent its extreme lateral portions, and by pressing inwardly asat 8 the metal ad acent its central portions. In other words, the area 6comprises a substantially plane surface of which the lateral marginalportions are outside of the are represented by the wall of thecylindrical body portion 2, and the central portion 8 is within said areand comprises a chord thereof. By forming the plane portion 6 of thelamp body in this manner I am able to provide said surface with aminimum of distortion of the metal of the body. The metal in themarginal portion 7 and the central portions 8 is pressed only slightlyout of its original position to lie in an intermediate plane, where asif either of such portions were forced the entire distance to lie in theoriginal plane of the other, a far greater distortion of the metal wouldbe required. The flat area 6 gilll be hereinafter designated as the bodyis c. The base 10 is designed to conform in shape to the surface towhich it is to be applied and is provided with screw holes 11 tofacilitate its application to such a surface. It is provided at 12 witha disk adapted in the completed article to be parallel to disk 6 of thebody. The disk portion 12 of the base is pressed from the base entirelyin one direction (away from the face which is to contact with thevehicle) instead of being formed by the method used in the formation ofthe disk portion 6 of the body.

Centrally of disks 6 and 12, I provide apertures 13 and 14 which arepreferably generally circular but have in their peripheries numerousnotches 16. In corresponding portions of one aperture there is also anotch 17 which will preferably be double the peripheral extent ofnotches 16. I have found it convenient 'to dispose the double notch inthat side of the aperture which lies in the direction of the front sideof the lamp.

For the purpose of connecting the base 10 and the body 1 of the lamp, Iprovide a standard 20 which may be conveniently formed from a flat blankshaped as indicated in Figure 4. This'blank will include side margins 21and 22 from which project laterally at intervals tongues 23. The ends 24and 2-5 of the blank will be formed for mutual abutment, and adjacenteach end will to. The arrangement is such that the blank may be rolledto bring into abutment its end portions 24 and 25, whereby there isformed a cylindrical split ring. This ring com prises the standard 20,and its axially projecting tongues 23 are so spaced as to be receivableinto the slots 16 and 1'? about the peripheries of apertures 13 and 14in the lamp body and base respectively. The arran gement is such thatthe closely contiguous tongues 23, which were located immediatelyadjacent the ends of the blank. will be received together into thespecial notches 17 which were referred to above. The split ring willthereby be keyed by disk portions 6 and 12 of the body and the base insuch a manner that its split ends are inseparable unless the lamp bedemolished. To retain the parts in this position, the extremities oftongues 23 are bent over the adjacent marginal portions of the disks andthereby serve to confine such marginal portions of disk 6 against margin21 of the standard, and the marginal portions of disk 12 against themargins 22 of the standard. Thus, the base and body of the lamp arepermanently and securely joined together.

There is formed in the blank from which the standard is formed, or elsein the completed standard, a recess or chamber which is indicatedgenerally at 27. In this recess one portion 28 may be in the end of theblank from which the standard is formed, and the other portion 29 of therecess may be in the end 24 of said blank. As shown in the drawings, therecess is preferably rectangular in elevation and is of a depthcorresponding substantially to the thickness of the metal of which itswalls are composed. Semi-circular pieces of metal are cut from each endof the blank within the confines of he recess to provide a hole 30 to bedisposed centrally in the completed standard 20.

The internally threaded sleeve 32 is preferably constr cted integrallywith a'rectangular base flange 33 receivable within the recess ofchamber 27. The aperture 30 is of suflicient diameter to receive sleeve32 with a close lit. Consequently, when the body 1, base 10, andstandard 20 of the lamp have been assembled in the manner alreadydescribed, the sleeve 82 can readily be pressed outwardy throughaperture 80 until the base flange 33 of said sleeve rests within the recess 27 formed in the wall of the standard.

At this time a socket sleeve will be pressed downwardly within thestandard 20 until an arcuate rib 36 formed therein contacts with thebent over extremities of tongues 23 of the standard. These lugs 36 areoppositely disposed and comprise limiting members, whereby to determinethe extent to which socket sleeve may be forced downwardly. The socketsleeve will be noted to have a comparatively close lit within thestandard 20 and will consequently be retained frictionally within thestandard. To en ure that it will not be displaced, however, I prefer toupset or rivet its extremities in the manner indicated at 37 so that itwill be impossible to withdraw the socket sleeve without destroying it.It is particularly to be noted that with the socket sleeve in theposition indicated, the intermediate port-ion of the wall of said sleevewill serve not only to re-enforce and stiffen column 20, but also toback up and secure against displacement the flange 33 of the internallythreaded member 52. Said flange is confined by sleeve in recess 27 andcannot possibly be displaced therefrom.

The soc :et sleeve 35 is provided with L-shaped slots at 38, whereby itis adapted to serve as a bayonet socket to receive a standard lamp. Itslength will be such as to position the lamp accurately within thebody 1. The sleeve is also provided with inwardly pressed integralfingers 39 which are adapted to receive and support a well known type ofplug, whereby such plug will be in position to make operative contactwith the base of a lamp in the bayonet socket provided by the sleeve.The plug is indicated at 50 with a wire leading thereto. it is notthought necessary to give the details of the interior construction ofthe plug since it is a commercially available article and forms no partof the present invention. For the purposes of support from the fingers39 the plug may be formed with L-shaped grooves to comprise an inversionof an ordinary bayonet socket.

The glass 5 of the lamp is held in place by the simple expedient of theretaining ring 40 including a band portion 41 and an inwardly projectingflange 42. In its uppermost portion the band 41 is provided with arearwardly and downwardly pro jecting hook-like member 43 adapted toengage over the flange or bezel 4 of the lamp body. The flange 42 willabut the glass 5 to retain the glass in place, and in the lower portionsof the band ll, I provide an ear 4H- centrally apertured as at 45 toreceive a screw 46 which is threaded for engagement in the sleeve 32.This very simple expedient for securing the glass not only makes simplethe original assembly of the device but also facilitates greatly the removal of the glass for cleansing or for the replacement of a lamp.Moreover, the arrangement is such that the possibility of accidentalloss and breakage of the glass -is remote, and so likewise is thepossibility of the glass being rendered unremovable through corrosion.

It will be seen from the foregoing description of this invention howeasily the several parts of this lamp can be manufactured and assembledin rigid and perill manent form. It will be noted further that the lampbase and body, through their connection with the standard, are not onlyretained in their proper relative positions but also retain in properform the standard itself, through the fact that the tongues 23 at eitherend of the blank from which the standard is formed are interlockedwithin single recess in the disk portion 6 of the body. It will beobserved further that the socket sleeve performs a triple function inthat it not only provides for the operative connection of plug with lampbut also re-enforces the standard and secures in position withoutfurther bolts, solder, or the like the screw-threaded sleeve 32 to whichthe ring 40 is fastened. In this last function, the standard. itselfco-operates by providing a recess in which is disposed the base flange33 of sleeve 32.

I claim:

1. In a device of the character described, the combination with a lampbody having a marginal flange adapted to receive a glass front, of aring provided with a hook engaged over said flange, said ring beingoperatively arranged to retain a glass against said flange, an earprojecting from said ring, a lamp standard connected with said body andproviding a threaded socket, and a securing screw engaged in said socketand connected with said ear, whereby to removably co-operate with saidhook to retain said ring and said glass in place.

2. As an article of manufacture, a casing for a vehicle lamp comprisinga cylindrical wall having an integral flat disk portion adapted to beconnected to a supporting member, said flat portion lying partiallywithin and partially outside of the curve of said cylindrical wall so asto produce a minimum of distortion of the metal of the wall.

3. In a device of the character described, the combination of a lampstandard having a. tubular wall .with a portion pressed outwardly toprovide a recess having a central aperture, a fitting extending throughsaid aperture and flanged within said recess, and a member filling saidstandard and confining said flange within said recess.

4. In a device of the character described, the combination with atubular standard having a laterally opening aperture and an adjacentrecess, of an internally threaded sleeve extending through said apertureand provided with a flanged base fitted within said recess and adaptedto co-operate with the walls thereof to secure said sleeve againstrotation, and means fitted within said standard and extending traverselythereof to confine said flange within said recess.

5. In a device of the character described, the combination with a lampbody of genprojecting through the notches of said apertures and having arecess formed in the in nersurface of its wall and a laterally openinghole centrally of said recess, a fitting including a screw-threadedmember projecting through said hole and provided with a flanged basecomplementary to said recess,

and a bezel ring apertured in substantial registry with said fitting andprovided remote from said aperture with means inter looking with saidbody.

6. In a device of the character described, the combination with a lampbody of generally cylindrical contour providing a substantially planesurface in its bottom and a lamp base providing a corresponding surface,both of said surfaces being apertured and having notches disposed atintervals about the margins of the apertures, of a tubular standardprovided with tongues projecting through the notches of said aperturesand having a recess formed in the inner surface of its wall and alaterally opening hole centrally of said recess, a fitting including ascrew-threaded member projecting through said hole and provided with aflanged base-complementary to said recess, a bezel ring apertured insubstantial registry with said fitting and provided remote from saidaperture with means interlocking with said body, and a sleeve fittedWithin said standard and confining the flange of said fitting withinsaid recess.

7. In a device of the character described, the combination with a lampbody of generally cylindrical contour providing a substantially planesurface in its bottom and a lamp base providing a corresponding surface,both of said surfaces being apertured and having notches disposed atintervals about the margins of the apertures, of a tubular standardprovided with tongues projecting through the notches of said aperturesand having a recess formed in the inner surface of its wall and alaterally opening hole centrally of said recess, a fitting including ascrew-threaded member projecting through said hole and provided with aflanged base complementary to said recess, a bezel ring apertured insubstantial registry with said fitting and provided remote from saidaperture with means interlocking with said body, and a sleeve fittedwithin said standard and confining the flange of said fitting withinsaid recess, said sleeve providing a lamp socket within said body.

8. In a device of the character described, the combination with a lampstandard com- &

prising a split ring having tongues projecting laterally from its ends,of a lamp base, and a lamp body provided With apertures registering Withthe opening through said ring and having notches in the margins of saidapertures to receive said tongues; and a re-enforcing sleeve disposedinternally of said standard and maintaining said tongues expanded intosaid notches.

9. In a device of the character described, the combination with a lampstandard comprising a split ring having tongues projecting laterallyfrom its ends, of a lamp base, and a lamp body provided with aperturesregistering with the opening through said ring and having notches in themargins of said apertures to receive said tongues; and a re-ent'orcingsleeve disposed internal- 1y of said standard and maintaining saidtongues expanded into said notches, said sleeve being provided witharcuate ribs intermediate its ends and adapted to abut said tongues andthereby to define the position of said sleeve.

ROBERT K. WINNING.

